This is just a simple block diagram over MC4X design to illustrate it’s components and summarize the planned changes. More communication ports CAN and RS485. I hope to save some space and add more communication ports to support redundancy etc. New PSU based on TPS54x60 providing 14-60VIN or 10-16V in. Support 10-12V for Gate driver,…
The 40V or 30V or 26V – ouch limits have always annoyed me, so with new MOSFET’s, current sensors and PSU I change to 60V design. Making Space for SOP Advance I can always use SOP and 30V MOSFET’s anyway. I finally found several temperature sensors in SOT23 package, so I ordered 2 different ones…
This shows my new driver circuit. I added R43 and R44 as weal pulldown’s to avoid that the MOSFET start leading by accident at power up. If I get space limitations I will rather remove R1 and R2. This will make it safer to put power on a Motor Controller in case the Gate Driver…
I still want to test more with rev 1.0 of MC4X24V15A, but I am also planning an upgrade. I initially drew a rev 1.1 using 78M12, but I will replace LMR14206 with TPS54x60 and AMS1117 with SPX3819. That will increase range to 60V which basically means 48V. I do have the challenge that I also…
Searching on Arrow’s pages I found 3 MOSFET’s in SOP Advance package that have insane ratings. 2. 40V 246A Rds=1mOhm 1.2 USD 3 45V 280A Rds=0.8mOhm 1.4 USD 3. 30V 280A Rds=0.65mOhm 1.3 USD Actual limit is more like 150A with a pulse drain of 500A in accordance to datasheet. But, look at the RDS…
I have always avoided using FedEx or similar services as I import Electronics due to the cost of their services. But, as I decided to buy 4 packages from Arrow in US and found that they offered “free” P&P using FedEx – why not? I am really impressed with Arrow and some of the deals…
This one was not as hard to route as I expected. I had to do a few compromises and I need to look things over. Ground plane include a few lines that I want separate etc + I need to ensure that all ground planes are connected. But, this looks good. A bit to dence…
I purchased 4 packages from Arrow in US (MOSFET’s) and I was surpriced that P&P was included free – and yes it is. But, Arrow uses Fedex that add a fictive P&P as this is declared to Norwegian customs and this made the value look like it was above the free import limit – which…
This will be work in progress for another week at least. I have routed the right side of DRV8301, but I have the left side + MCU left. I initially started with a STM32F303CB, but decided to move up to a STM32F405RG. Current size is ca 100mm x 25mm and components only on top side.…
This show 3 components on a 3D model. The one to left is a 0603 package, and if you have any idea of how small that is then you also see the size of INA210 in the middle. INA194 is SO-23/5 which is “easy”. I consider 0603 easy as well, but 6 pins on that…